Home / 26,620.36-39,938.86-7,900.50

Finding the Fourth Proportional to 26,620.36, 39,938.86 and 7,900.50

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Solution

The fourth proportional to 26,620.36, 39,938.86 and 7,900.50 is: 11,853.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,620.36 : 39,938.86 = 7,900.50 : x
  2. Step 2: Convert to fraction form
    26,620.36/39,938.86 = 7,900.50/x
  3. Step 3: Cross multiply
    26,620.36x = 39,938.86 × 7,900.50
  4. Step 4: Simplify right side
    26,620.36x = 315,536,963.43
  5. Step 5: Solve for x
    x = 315,536,963.43/26,620.36
  6. Step 6: Final answer
    x = 11,853.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.